Macrotocinclus flexilis which is also known as the peppered Oto belongs to the Hypoptopomatinae subfamily, Loricariidae family and Siluriformes order. The species may also be known as Ototinclus flexilis, Otocinclus fimbriatus, and Otocinclus arnoldi. The species was reclassified from
The species is native to South America (Argentina, Paraguay,
Uraguay, Brazil). The peppered Oto occurs in clear waters and rarely in black waters. In general, Macrotocinclus species as its former genus (Otocinclus), occur in well-oxygenated headwaters of main rivers of South America with vegetation and moderate to slow flowing movement. The water has a high amount of tannin due to the decomposition of leaves and wood that makes the water tea-colored (an indication of soft and acidic habitat). Furthermore, the species occur in seasonally flooded rainforests.
The species has a peaceful temperament that makes it ideal in community tanks with other nonviolent small size species. It’s advised to keep the species at least in a group of 6 individuals and more due to their schooling behavior. Because of the natural habitat of the peppered Oto should be kept in soft acidic water. The species is not a good option for a beginner because Macrotocinclus species require clean water with stable parameters. A pH between 6.5-7.5, with a temperature between 18-24 Celsius, and a hardness between 2-25 dGH, suits the species.
The species need a reasonable space because
In general, there are few occurrences of breeding reports of Macrotocinclus and Otocinclus species in captivity. The species have a similar breeding habit with corydoras species.
- Hans-Georg Evers and Ingo Seidel 2005, Catfish Atlas Vol. 1, published by Hans A. Baensch, ISBN 388240643
flexilisTSN 164355. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=640028#null
- Marcelo R. Britto and Cristiano, R. Moreira 2002, Otocinclus
tapirape: A New Hypoptopomatine Catfish from Central Brazil Siluriformes Loricariidae. Retrieved from https://www.researchgate.net/publication/237222478_Otocinclus_tapirape_A_New_Hypoptopomatine_Catfish_from_Central_Brazil_Siluriformes_Loricariidae
- Richard Geis 1999, Catfish, TFH publications, ISBN 0791050890
flexilis. Retrieved from http://www.fishbase.org/summary/50441
- Otocinclus flexilis. Retrieved from https://www.planetcatfish.com/common/species.php?species_id=1350
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